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drm/nvc0/fifo: use runlist event instead of polling 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-02-22 01:05:01 +10:00
parent e2822b7aea
commit 3cf6290a1d
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
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@ -96,8 +96,10 @@ nvc0_fifo_runlist_update(struct nvc0_fifo_priv *priv)
nv_wr32(priv, 0x002270, cur->addr >> 12);
nv_wr32(priv, 0x002274, 0x01f00000 | (p >> 3));
if (!nv_wait(priv, 0x00227c, 0x00100000, 0x00000000))
nv_error(priv, "runlist update failed\n");
if (wait_event_timeout(priv->runlist.wait,
!(nv_rd32(priv, 0x00227c) & 0x00100000),
msecs_to_jiffies(2000)) == 0)
nv_error(priv, "runlist update timeout\n");
mutex_unlock(&nv_subdev(priv)->mutex);
}